"file:///C:From: Jennifer Cline
Sent: Wed Jul 22 16:27:15 2015
To: Jim Pex
Subject: RE: Pipe Type/Size Discussion
Importance: Normal
I spoke with Dennis and he felt either option is easily maintained. If we do a rough cost comparison, would there be a significant difference between the two?
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Jim Pex [mailto:Jim.Pex@msa-ep.com]
Sent: Wednesday, July 22, 2015 4:16 PM
To: Jennifer Cline <jcline@cityofmolalla.com>
Subject: RE: Pipe Type/Size Discussion
No problem, if there are concerns with flexing you can easily adjust different wall thicknesses of HDPE. We can simply adjust them to make sure they are allowable with the loading rates we’ll need on the project.
In my opinion if you used the standard gravity pvc for anything under the curbline/sidewalk region (min 24” cover) and then DI in any road crossings it would work just fine. If you wanted one pipe for consistency, HDPE would be the choice.
Jim Pex, P.E. | Civil Engineer
T: 541.741.2975 Cell: 541-972-0851| Jim.Pex@msa-ep.com
175 West B Street, Bldg. K-2 | Springfield, Oregon 97477-4575 | www.msa-ep.com
Murray, Smith & Associates, Inc. | Your Public Works Partner
Notice: This e-mail and any attached files are the private confidential property of the sender, and the materials are privileged communications intended solely for the receipt, use, benefit and information of the intended recipient indicated above. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying, distribution, or taking of any other action in reliance on the contents of this transmission is strictly prohibited, and may result in legal liability on your part. If you have received this e-mail in error, please notify us immediately at the above address.
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From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Wednesday, July 22, 2015 4:07 PM
To: Jim Pex
Subject: RE: Pipe Type/Size Discussion
I know HDPE is a good solid material, however it makes me nervous with how flexible it is.
Let me get back to you on this soon.
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Jim Pex [mailto:Jim.Pex@msa-ep.com]
Sent: Wednesday, July 22, 2015 4:04 PM
To: Jennifer Cline <jcline@cityofmolalla.com>
Subject: RE: Pipe Type/Size Discussion
I think it was HDPE, my brain is foggy at the moment but that would be the only other realistic choice.
Jim Pex, P.E. | Civil Engineer
T: 541.741.2975 Cell: 541-972-0851| Jim.Pex@msa-ep.com
175 West B Street, Bldg. K-2 | Springfield, Oregon 97477-4575 | www.msa-ep.com
Murray, Smith & Associates, Inc. | Your Public Works Partner
Notice: This e-mail and any attached files are the private confidential property of the sender, and the materials are privileged communications intended solely for the receipt, use, benefit and information of the intended recipient indicated above. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying, distribution, or taking of any other action in reliance on the contents of this transmission is strictly prohibited, and may result in legal liability on your part. If you have received this e-mail in error, please notify us immediately at the above address.
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From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Wednesday, July 22, 2015 3:58 PM
To: Jim Pex
Subject: RE: Pipe Type/Size Discussion
Hi Jim,
What was the other option you mentioned? Is that available in this pipe size?
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Jim Pex [mailto:Jim.Pex@msa-ep.com]
Sent: Wednesday, July 22, 2015 3:51 PM
To: Jennifer Cline <jcline@cityofmolalla.com>
Cc: Chris Link <Chris.Link@msa-ep.com>; Hash, Kenneth F. <HashK@hdjdg.com>
Subject: Pipe Type/Size Discussion
Jennifer, following up on our discussion yesterday with pipe sizing increasing to 30-inch for the storm sewer. With that increase in size it changes the type of pipe available for installation and eliminates C900 as that is only made in smaller sizes. You can go to a C905 for larger diameter pipe but is not really intended for gravity sewer and price wise will be approaching DI costs per LF of installation.
The standard 30-inch PVC gravity pipe follows the requirements of;
ASTM F679
PS46 and PS115
Ring-Tite™ Joints 18" - 36"
JM Eagle has a good descriptor of the available sewer pipe types/sizes here: http://www.jmeagle.com/products/waterworks/gravity-sewer.html
So in conclusion, if you’d like to go to a C905 or the standard F679 type I just need to know for placement in the plans/specs. Thanks in advance, if you have questions feel free to call.
Jim Pex, P.E. | Civil Engineer
T: 541.741.2975 Cell: 541-972-0851| Jim.Pex@msa-ep.com
175 West B Street, Bldg. K-2 | Springfield, Oregon 97477-4575 | www.msa-ep.com
Murray, Smith & Associates, Inc. | Your Public Works Partner
Notice: This e-mail and any attached files are the private confidential property of the sender, and the materials are privileged communications intended solely for the receipt, use, benefit and information of the intended recipient indicated above. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying, distribution, or taking of any other action in reliance on the contents of this transmission is strictly prohibited, and may result in legal liability on your part. If you have received this e-mail in error, please notify us immediately at the above address.
P Please consider the environment before printing this e-mail.